Exploring the capabilities of active grids
Active grids are commonly used in wind tunnels to generate turbulence with different
characteristic features. In contrast to the common objective to generate turbulence with a …
characteristic features. In contrast to the common objective to generate turbulence with a …
[HTML][HTML] A novel approach for artificially generating horizontal wind gusts based on a movable plate: The paddle
The paper is concerned with a novel approach to generate horizontal wind gusts in classical
wind tunnels. Assuming an open test section of an Eiffel-or Göttingen-type wind tunnel, the …
wind tunnels. Assuming an open test section of an Eiffel-or Göttingen-type wind tunnel, the …
Model-free control of the dynamic lift of a wind turbine blade section: experimental results
This work addresses the problem of developing control algorithms for the control of the
aerodynamic lift of wind turbine blades using air injection, taking into account disturbances …
aerodynamic lift of wind turbine blades using air injection, taking into account disturbances …
Unsteady flow generation in a wind tunnel using an active grid
A Azzam, P Lavoie - Experiments in Fluids, 2023 - Springer
Unsteady flows are pervasive in nature and engineering applications, such as unmanned
aerial vehicles and wind turbines. Simulating these flows in an experimental setting is …
aerial vehicles and wind turbines. Simulating these flows in an experimental setting is …
[HTML][HTML] Developing a digital twin framework for wind tunnel testing: validation of turbulent inflow and airfoil load applications
Wind energy systems, such as horizontal-axis wind turbines and vertical-axis wind turbines,
operate within the turbulent atmospheric boundary layer, where turbulence significantly …
operate within the turbulent atmospheric boundary layer, where turbulence significantly …
How to design a 2D active grid for dynamic inflow modulation
TTB Wester, J Krauss, L Neuhaus, A Hölling… - Flow, Turbulence and …, 2022 - Springer
In free-field operation, many aerodynamic systems are confronted with changing turbulent
inflow conditions. Wind turbines are a prominent example. Here, the rotation of the rotor …
inflow conditions. Wind turbines are a prominent example. Here, the rotation of the rotor …
Experimental assessment of a blended fatigue‐extreme controller employing trailing edge flaps
S Bartholomay, S Krumbein, S Perez‐Becker… - Wind …, 2023 - Wiley Online Library
This paper presents an experimental assessment of a blended fatigue‐extreme controller for
load control employing trailing edge flaps on a lab‐scale wind turbine. The controller blends …
load control employing trailing edge flaps on a lab‐scale wind turbine. The controller blends …
Wind tunnel study: is turbulent intensity a good candidate to help in bypassing low Reynolds number effects on 2d blade sections?
Wind turbines operate in the turbulent atmospheric boundary layer and can be additionally
exposed to the wakes of upstream wind turbines. Hence the inflow encountered by wind …
exposed to the wakes of upstream wind turbines. Hence the inflow encountered by wind …
[HTML][HTML] A numerical method to mimic an experimental wind gust generator: The immersed boundary gust generator
K Boulbrachene, M Breuer - Physics of Fluids, 2024 - pubs.aip.org
To generate horizontal wind gusts in a classical wind tunnel, Wood, Breuer, and Neumann
[A novel approach for artificially generating horizontal wind gusts based on a movable plate …
[A novel approach for artificially generating horizontal wind gusts based on a movable plate …
[HTML][HTML] Experimental and numerical simulation of extreme operational conditions for horizontal axis wind turbines based on the IEC standard
K Shirzadeh, H Hangan, C Crawford - Wind Energy Science, 2020 - wes.copernicus.org
In this study, the possibility of simulating some transient and deterministic extreme
operational conditions for horizontal axis wind turbines based on the IEC 61400-1 standard …
operational conditions for horizontal axis wind turbines based on the IEC 61400-1 standard …